From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 29 Jul 2019 10:25:02 +0100 From: "Dr. David Alan Gilbert" Message-ID: <20190729092502.GA2756@work-vm> References: <20190726083322.13637-1-stefanha@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190726083322.13637-1-stefanha@redhat.com> Subject: Re: [Virtio-fs] [PATCH 0/3] virtiofsd: add FUSE_INIT map_alignment field List-Id: Development discussions about virtio-fs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: virtio-fs@redhat.com, qemu-devel@nongnu.org * Stefan Hajnoczi (stefanha@redhat.com) wrote: > The client must know the server's alignment constraints for FUSE_SETUPMAPPING > and FUSE_REMOVEMAPPING. This is necessary because mmap(2)/munmap(2) have > alignment constraints and the guest may have a different page size from the > host. The new FUSE_INIT map_alignment field communicates this information to > the client. OK, merged into my local world. DAve > Stefan Hajnoczi (3): > virtiofsd: sync up fuse.h Linux 5.1 header > virtiofsd: add map_alignment to fuse_kernel.h > virtiofsd: implement FUSE_INIT map_alignment field > > contrib/virtiofsd/fuse_kernel.h | 56 +++++++++++++++++++++---------- > contrib/virtiofsd/fuse_lowlevel.c | 8 +++++ > 2 files changed, 47 insertions(+), 17 deletions(-) > > -- > 2.21.0 > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5CE5EC7618B for ; Mon, 29 Jul 2019 09:25:43 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3243020693 for ; Mon, 29 Jul 2019 09:25:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3243020693 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:50678 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hs1uY-0005c0-4J for qemu-devel@archiver.kernel.org; Mon, 29 Jul 2019 05:25:42 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57401) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hs1u6-0005CP-Gk for qemu-devel@nongnu.org; Mon, 29 Jul 2019 05:25:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hs1u5-0000RQ-L7 for qemu-devel@nongnu.org; Mon, 29 Jul 2019 05:25:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57230) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hs1u5-0000Qf-GJ for qemu-devel@nongnu.org; Mon, 29 Jul 2019 05:25:13 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 87923368E3 for ; Mon, 29 Jul 2019 09:25:11 +0000 (UTC) Received: from work-vm (ovpn-117-222.ams2.redhat.com [10.36.117.222]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 40FF21000329; Mon, 29 Jul 2019 09:25:04 +0000 (UTC) Date: Mon, 29 Jul 2019 10:25:02 +0100 From: "Dr. David Alan Gilbert" To: Stefan Hajnoczi Message-ID: <20190729092502.GA2756@work-vm> References: <20190726083322.13637-1-stefanha@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190726083322.13637-1-stefanha@redhat.com> User-Agent: Mutt/1.12.0 (2019-05-25) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Mon, 29 Jul 2019 09:25:11 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] [PATCH 0/3] virtiofsd: add FUSE_INIT map_alignment field X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: virtio-fs@redhat.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" * Stefan Hajnoczi (stefanha@redhat.com) wrote: > The client must know the server's alignment constraints for FUSE_SETUPMAPPING > and FUSE_REMOVEMAPPING. This is necessary because mmap(2)/munmap(2) have > alignment constraints and the guest may have a different page size from the > host. The new FUSE_INIT map_alignment field communicates this information to > the client. OK, merged into my local world. DAve > Stefan Hajnoczi (3): > virtiofsd: sync up fuse.h Linux 5.1 header > virtiofsd: add map_alignment to fuse_kernel.h > virtiofsd: implement FUSE_INIT map_alignment field > > contrib/virtiofsd/fuse_kernel.h | 56 +++++++++++++++++++++---------- > contrib/virtiofsd/fuse_lowlevel.c | 8 +++++ > 2 files changed, 47 insertions(+), 17 deletions(-) > > -- > 2.21.0 > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK